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s2008m [1.1K]
3 years ago
9

Evaluate the expression. Question 9 options: A) tan π∕56 B) tan 17π∕56 C) –tan 17π∕56 D) –tan π∕56

Mathematics
1 answer:
nikitadnepr [17]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Note the expansion

tan(a - b) = \frac{tana-tanb}{1+tanatanb}

We are given the right side of the expansion , then left side is

tan(\frac{\pi }{7} - \frac{\pi }{8} )

= tan(\frac{8\pi -7\pi }{56} )

= tan (\frac{\pi }{56} ) → A

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